I'm a big fan of Bemberg rayon linings. I prefer it to acetate linings, despite high prices that overlap with cheaper silks. But the patented process (originally invented in Germany) uses toxic salts. American manufacturers closed rather than upgrade en.wikipedia.org/wiki/J._P._B...
Asahi of Japan refined the Cupro process so they can make Bemberg from cotton waste (seeds and short fibers) in a closed loop system that recovers & reuses the toxic salts. Asahi built Bemberg factories in India where cotton is grown & processed. Trump take Bemberg bsky.app/profile/ande...